Stereotype-plate-casting box.



H. F. icmvmlw.r STEREOTYPE PLATE CASTING BOX APPLICATION FILED OCT- I2| |914.

Pa''nted Apr. 17, 1917.

3 SHEETS-SHEET I.

H, F.I BECHMAN.

STEREOTYPE PLATE CASTING-BOX.

ArPLlcAlou msn ocr. 12. |914.

Patent d Apr. 17, 1917. l

UNITED sTATEs PATENT oEEIcE.

HENRY F. BEIHHAN, F BATTLE CREEK, MICHIGAN, ASSIGNO] t TO DUPLEX PRINTING' m88 COMPANY, OF BATTLE GREEK, IICHIGAN, A COBPOR LTION 0F MICHIGAN.

STEBEOTYPE-PLATE-CASTING- BOX.

Specilication of Letters Patent.

Application Med ctober 12, 1914. Serielle. 866,2 l5.

Y To all whom it may concern:

Beit' known that I, HENRY F. BECHMAN, a citizen of the United States, residing at Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Stereotype- Plate-Casting Boxes; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanyin drawings, which form part/of this speci cation.

This invention relates to stereotype casting `boxes and has .articular reference "to reference to v`the accompanying boxes' for casting'tu ular stereot pe plates of the type shown in my Patentl o. 945,678 of January 4, 1910 for example; and the ob- 'ject of the present inventionis to improve and simplify the construction of such boxes increase their efficiency, and obviate some of the trouble which has been experienced with opened and the core partly lowered.

Fig. is a detail side view of part ofFig'. 3 showing the core almost in closed position.

Fig. 5 1s a `front elevation of Fig. 1.

4 Fig. 6 is a view showing the core lowered into position for removal of a plate there from. 4.

As shown in the drawings the box comrises a base A to which are secured side rames B, B upon which are ri idly mounted in .vertical position Aa dra that is provided on lts front face wit a semi-cylindric recess and with a vertical rib c to engage the matrix when the latter is inserted in the box. The vspecific matrix retaining devices form no part of the present invention and may. be of any suitable kind.

4To the drag C is hinged a cope D, theI r hinges being indicated at cl, so that the cope t e horizontally to and from e cope has a semi-cylindric re'- ace and when the dragis can swin dragz cess 1n its lnner closed as indicated in F ig. 2 the opposed recesses in the drag 'and cope form a true cyllndric chamber `vhose diameter equals the exterior diameter of the plate to be cast plus the thickness of the matrix.

The core E in th e present invention has a lower portion e which comes below the dra and cope and is pxovided with trunnion's e on opposite sides, which are pivoted in suitable bearings in the si-de frames B, B, so that said core can be swung in a vertical Thecore has an upper cylindric portion e*` whose diameter substantially conforms to the desired internal diameter of the plate to be cast and is therefore less .in diameter than the diameter of the chamber between the cope and drag.

This cylindric p z yrt e2 is preferably 'slightly longer than the cope and vdrag and extends above the same and is preferably tapered oil on the front side, :s indicated at 6, to form a curing mouth. The core is also provi ed at the lower end of the part e2 with an annular ange e4 which closes the bottom of the casting space when the parts are in position for casting a plate, as indicated in Figs. 1 and 2.

`The corev is also provided with a rib e which co-acts with the part c on the drag to hold a matrix during the casting operation in theV usual manner.

The cope may be provided with a handle d and with a. pro; ecting lug d adjacent its hinged end which v4When the cope is thrown open will contactwith an opposed projection c2 on the drag and limit the opening of the cope. y

The cope is proided with a in or roller Z on its free side which is a apted to vbe engaged by a slotted cam W pivoted upon a lane.

exs.y

pin or stud Yatlached to the side of the drag, see Figs. 1l and 3. and said cam late may be operated by means of ahand e lw which when the cope is opened contacts with and rests upon a stop pin X on the drag so that the mouth of the cam slot W is in position to engage the pin Z when the cope is closed. shaped that the pi u Z on the co e-will enter its mouth and start handle w' orward, and the4 operator by th sn drawing. handle w forward causes the (am W to draw the co e closely against the drag and lock it secure y in closed position as indicated in Fig. 1.l When it is desiree'. to open the cope the op- The slot in cam W is so the core, but are locate erator pushes handle w backward causing the'slot in can W to start the cope open, in

a forcible manner, the co e being afterward fully o ened by handle j?.

It w l be observedthat the core trunnions e are not at diametricall o posite points on 0E the center line thereof so that when the cope is opened the core will naturally tend to tilt forward on the'trunnions and away from thedrag, byl

gravity; which tilting action will be enhanced by the weight of the cast plate upon the part e2 of the core. This eccentric location of the trunnions therefore causes the core to automatically start out of the box, by gravity, when the cope is thrown open. A rounterbalancing weight F is attached to the lower end of the part e of the coreV below the trunnions, as shown, to prevent too sudden dropping of the core, and to also practically counterbalance the cylindrical part e2 of the core, and enable it to be easily returned to casting position.

When a cast plate (not shown) is on the core the weight of the plate overbalances the weight F and would cause the core E-to drop too rapidly to open position; and toprevent injury by any such action and at the same time permit thev core to drop by gravity with the cast plate to the position shown in Fig.

6, I preferably em loy an air cushion, comprising a cylinder in which is a piston K attached to a iston rod I. The c linder L is preferably astened to the side o the drag and closed at top. and` the piston rod I extends downwardly and is provided with rack teeth 'i on its lower end which teeth are engaged by a-Segment H that is ri idly fastened to one of the trunnions e' o the core, as shown. The rack I maybe guided beside the segment H in va grooved roller J rotatably mounted upon a stud j on one of theframes B, as shown.

forwardly the segment H causes piston K' When the core tilts to rise in the air cylinder, and the ascent of the latter being resisted and cushioned by operator by then depressing lever O will4 the air in the cylinder, the core will descend when it is loaded with the cast plate ahnost to the psition indicated in Fi'g. 6, and without shock. v

Attached to the other trunnion of the core is a cam plate G which has a peculiarly is so'shaped that when the core is raised -to almost vertical position the roller M will enter one of the ends'of the cam slot and the cause roller M to enter this end. of the cam slot and hold the core raised in approximately closed positionl against the drag, see

Fig. -1.

fter the casting operation, the cope is opened, and by lifting lever O the core is started outward and its upper end will descend by gravity, as stated, until the roller M approaches the other end of the slot g, and then by depressing lever O the roller M is caused to forcibly enter such end of the slot Y, see Fig. 6, and will hold the core in owered position for the removal of the plate; when the plate has been removed and 1t is desired to return the corethe lever O may be slightly lifted and then the core will b the action of counterbalance before descri ed automatically return to approximately vertical position,'see Fig. 4, at which point roller M will engage the other end of the slot g as described.

The lever O is provided with a. dog P which is pivoted to the'lever and is adapted to enga e a catch bolt Q projected by 'a spring b in a box R attached to the frame or base below the-lever O. When thedog P engages bolt Q as shown in Fig. 4, it will prevent core E .from falling Aor moving into casting position until after the matrix has been ad listed around the core and in the drag. 'Phon the operator should disengage dog P from the core by kicking the dog outward with his foot, the dog'being provided pose; then the core can be moved farther inward and the co e can be closed as'indicated in Fig. 2. If) the operator should foret to disengage the dog P- from the catch and close the cope onto the core while the parts are in the position shown in Fig. 4, the v spring S would yield and allow the ver O to descend and the cope to be closed without injury to the cope or the core.

In such boxes it is desirable to cool thev mons e and connected to an elbow T at the outer end of the trunnion. The other pipe with a pin p on its lower end for this pur- E2 communicates with a passage c1 leading v through the other trunnion and connecte with an elbow T. The elbow T is connected b .a hose section U with an elbow or union Vyattached to one of the side Iframes B, and which may in turn be connected with a water supply plpe in any suitable manner. vThe elbow Tl is connected b a hose section U with an. elbow V attac ed to the opposite frame: B, and which may be connected by a pipe to an outlet. The water passes through the connections V, U, T, and pipe E into the core, thence it passes to the top and es` capes through the pipe E and connections T UV. The pipe Eis referably made slightly lon r than pi e 2 so that the drain will e slightly below the inlet as set forth in my aforesaid patent. The trunl Operation.

When casting a plate the cope is'swungv open, and the core raised to the osition iny dlcatcd in Fi 4; the ascent of t e core beindg` cushion by the piston K in air cylin- ,v der L, `which is preferably made double acting so that both the raising and lowering of the "core is cushioned thereby.l After 4the justedaround the core withits ends inserted into the recess'in the drajat opv osite sides `of the rib c; then the dog shou d be disenjgaged Afrom catch Q, and the cope closed and loc ed `by the cam W as shown in ,Figs. 1 fand 2.' The box is then filled with metal poured in at the top of the core E.` During thc 'casting o ration the core is kept cool by the water'clrculated therethrough. After castin the plate the cope is released and artia y opened uby throwing the handle w ackward,then the co e is swung open to theposition shown in ig. 3; the core then (o, tilts forward and drops under the weight of the castplate nearly to the position shown in Fig. 6;l the dropping of the plate-laden core being cushioned by the piston Kin cyl- 85]() which lowers the core toythe position l shown in Fig. 6 and locks it in that position, and the cast late isremoved by slipping it endwise olf .t e part e2. y .WhatIclaim is: A n 40; '1. In a stereotype castingapparatus the combinationof` a cope `and a drag adapted to l l surround a core, with a hollow core mounted on hollow trunnions, a water inlet connection with one hollow trunnion, and a water i outlet connection with the, other-hollow trunmon. l 2. yIny a stereotype casting a paratus the combination of a cope and a ra adapted mounted onl hollow .trunnions, an .inlet and a drain pipe within the core, Water inlet connections with. one trunnion, and@J water out-` let"` connection with the other-trunnion, sub stantially as described.

combination of a cope and a drag adapted to surround a` core, with a hollow core mounted on hollow trunnions, an inlet and a drain pipe within the core, a flexible water inlet connection with one hollow trunnion, and a flexible l water outlet connection with the other hollow trunnion. 4. In a casting box the combination with i a tiltable` core; of a camk plate connected Il with thecore, and a lever engaging the cam means to lhold t e cole in .nearV butv out of core is raised the matrix I (not shown) is ad-V inderL. The operator then depresses lever' v sition.

to `surroundk a core, with a ho ow fcore V3. In Va stereotype casting apparatus the "adapted tol be engaged by saidl dog to hold plate to hold the core' in either raised or lowered osition. V5. n a casting box, the combination of a tiltable core ada ted tc tilt by gravity; with' casting position.

6. In a castmg box, the combination of a tiltable core having trl lnnions at one side of Y its axial-line tocauso the core to tilt by gravity; withwmeans to lock' the core in 75 raised or loweredpostion, and means for cushioning the descent of the core. 7. In a casting box, the combination of a tiltable core havlng trl Lnnons at one sideof its axial line to` cause it toll` tilt by gravity;` so with a cam plate conn acted with the core, a leverk engaging the cam plate `to `hold the core in raised or low( red position, and an air cushion for arresti 1g the'descent ofthe 8; In combination, a drag, a co e, altiltf able core having trun mons on w ich sald l core is pivotally mounted, a vcam plateattached to` one trunnio; 1 having a cam slot, and. a lever engaging' said vcam slot and 90 adapted to hold the core k*in elevated or lowered position.- 9. In combinatiomfa drag, a co e, atltable core havingtrun nions on w ich it isV pivotallyr mounted, a (am plate attached to the trunnion havinga cam Slot, a lever engaginggsaid'cam slot to hold the core lin elevated or lowered position, a do pivoted to Y Ksaid lever, and acatich adapted to engage 'said dog and hold the (ore out of casting po- 10. In combination, i drag, a cope, 'a tilt'- able core, andair compression means for regulating the lowering and raising of the core.

11. In combination, i' drag, .a cope, a tilt-` able pivotally mounted core, an air cylinder, a piston therein, and )perative connections between 'said piston ani the core. ,y 4

12. In combination, a dra a lcope, a tiltable core pivotally miunte -on trunnions,

an air cylinder, a pist on therein, a toothed rack connected with said piston, and a segment connected totha core and engaging. saidrack. V

\ 13. In combination, a drag, a cope,a tiltin core, a pivoted lever to hold the core in J su tantially closed position, and yieldable means to lock the lever when the coreis raised. 14. In combination, ai dra a cope, a tilting core, a pivoted lever to oldthe core in su stantially closed pc sition, a dogpivoted on the lever, and a spring pressed bolt the core out of casting 3 )osition.

15. In combinatioma drag, a cope, a tiltable-core, means to cus iion the movement of the core, a lever adapt ad to hold the core in raised or lowered position,` and means for yieldingly locking said lever.

scf

iso

' ing core having a cam plate, a ivoted lever.

engaging the cam 16. In combination, a drag, a cope, a tilt-l late to hol lthe core in substantially close position, and yieldable means to lock the lever when the rcore is raised. f-

17. In combination, a drag, a cope, a tilting' core,A having a cam plate, a ivoted lever engaging the cam plate to hol the core in substantlally closed position, a dog pivoted on the lever, and a sprin pressed bolt adapted to be engaged by `said ldog to hold the core in `raised osition.

18. In combinatlon, a dra a cope, a tiltablecore pivotally mounte .on trunnions, means to cushion the 'descent of the core,-a

" slotted cam plate ,attached to the core, a lever having a-pm engaging the slot in said .cam

plate to'hold the core inraised or lowered position,-and means for yieldingl locking said lever to hold the core in raise position.

19. In combination, a drag, a cope, a tiltable core, an air cylinder, a piston therein and operative connections between the piston and the core with a slotted cam plate attached to the core, a lever having a pm engaging the,s1ot in said cam plate to hold the core in raised or lowered posltion, and means for yieldingly -locking said lever.

20. In combination,l a drag, a cope, a tiltable core, an air cushion device, with a cam plate .attached to the core, a' lever engaging the said 'cam plate-to hold the core in raised 'f or lowered position, Vandy means for yieldingly locking said lever.

21. In combination, a drag, a cope, a tiltiaaapa'e ablev pivotally mounted on trunnions, an air cylinder, a piston therein, a toothed rack connected with said piston, and a seg-` ment connected to one of the core-trunnions aging said rack; with a cam plate attac ed to one of the trunnions of the core,-

a lever engaging the said cam plate to hold he cor in raisedor lowelgegl pfositiondandla o an co-acting sp t or yie ing y locing lsaid lever to ho d the core in raised position.

22. In apcasting box, a cope, a drag and a'V tiltable core coperating with the co e and drag to forma casting chamber, said core havi trunnions located at one side of its axial e to cause the core to'tilt by gravity when the box is opened.

23. In a castin Ybox, the combination of a drag, a co e, an a tiltable core having axially aline trunnions at one side of its axis ravity when to cause the core -to tilt by loaded with a c ast plate an opened. f

`24. In a castin box, the combination of a co e, a drag, an a tiltable core ada ted to the box is tilt y gravit when the box is opene with,

means to hol the core in raised or lowered position, and means for cushioning the gravital descent of the core.

In-testimony that I claim the foregoing as my own, I aix my signature in presence of two witn HENRY F. BECHMAN.

- i Witnesses:

InvrNG K. STONE, CHARLES A.v Gnus. 

